Brake-beam fulcrum



6 Q, 4. Aw l. W, O R R A P S A INov. 20, 1923.

BRAKE BEAM FULGBUM Filed act. 27. 192i ||r|| IIIIIII Il?.

Patented Nev.. Z, 1923.

ARTHUR SPARROV, F 1&0 ELLNOIS, LLSSLGITOR T0 ARIETE/ICAM STEEL FOUN- DREES, F CHECAGO, ili. 151, A CGRPRATION O-E NEW' JERSEY.

BRAKE-BEAM FULCRM.

Application filed Detober 27, 1921.

T0 all 'zn/tom` it may @0f/cera Y ide 1t known that l, irri-run 'rannow, a citizen ot the United States, residing at Chicago, in the county ot @ook and State of Illinois, have invented certain new and useful Improvements in Brake-Beam Fulcrums, Ot which the 'following is a speciiication.

rl`his invention relates to bralre beams and more particularly to reversible ulcrums forming a part thereof. A

@ne object oit the invention is to provide a reversible `i'ulcrum tor the truss type of brake beam, which i'ulcrum may be reversed between right and left-hand positions in a manner to meet service requirements and at thel same time provides connection to the compression member or the brake beam without any longitudinal lost motion.

This and othefrobjects are accomplished 2o by means of the arrangement disclosed on the accompanying i sheet of drawings, in which- Figure 1 `is a fragmentary side elevation of a. brake beam embodying my invention, the tension and compression members being shown in section;

Figure 2 is a fragmentary top plan view of the same arrangement; and

Figure 3 is a fragmentary rear elevation of the same brake beam.

The variousl novel features of the inven tion will be apparent from the following description and drawings and will be particularly pointed out in the appended claims.

Referring to the iieures of the drawings, it will be noted that 1 have disclosed my invention in connection with a truss type of brake beam including a compression member 10. a tension member 11 and a fulcrum post 12 extending therebetween.

lt will be understood that a. brake lever, not shown, may be pivotally connect/ed to the fulcrum post 12 by means of a pin, not shown. extending through openings 13 in the side walls ot the ttulcrum post 12 the latter being provided with a flange 14 which engages the front surfaces of the ianges 15 of the compression member 10, Jthereby forming a frictional engagement between said. Hanges 1-1 and- 15 Jfor frictionally holding the reversible 'fulorurn post 12 in adjusted position. Extending outwardly toward the rear of the fulcrum post 12 from the rlange 14 is a portion 16 having angular faces 17 for engaging the upper and lower flanges 15 Serial No. 510,894.

of the compression member 10 for limiting reversible movements of the iulcrum post 12. Aside from the engagement of the 'faces 17 with respect to the compression member 10, no part ot the portion 16 engages the compression member. Extending rearwardly from the portion 16 and formed integrally therewith is a conical projection 1S which extends through an aperture 19 in the web 20 of the compression member 10. The projection 18 is provided with a slot or opening 21 through which a wedge 22 is driven. The inclined surface 23 or the wedge engages the rear inclined wall 24 ot the opening 21 and the front straight surv face 25 of the wall engages the rear surface 28 of the web 2O of the compression member 10. Accordingly, when the wedge 22 is driven in place the flange 14: of the ulcrum post is drawn tightly against the edges of the flanges 15 of the compression member and the front surface 25 of the wedge 23 pressed tightly against the rear surface of the web 20 of the compression member 10, thereby eliminating all lost motion in the truss connection between the tension and compression members and at the same time the reversible fulcrum post 12 is frictionally held in its different adjusted positions.

The front end of the iulcrum post is provided with a seat 26 formed between projections 27 so shaped and spaced as to permit reversible movements of the tulcrum post 12.

It is my intention to cover all modilications of the invent-ion Jfalling within the spirit and scope of the following claims.

I claim:

1. ln a brake beam, the combination of a compression member, a iulcrum post having an apertured portion extending beyond the compression member, and a wedge passing through the aperture in said fulcrum post at tbe rear of said compression member for holding said tulcrum post in position with respect to said compression member.

2. In a brake beam, the combination of a compression member, a fulcrum post having a portion extending beyond said compression member, and a wedge engaging the rear surface oit' said compression member and said portion of said fulcrum post for securing the latter in position.

3. lnV a brake beam, the combination of a tension member, a compression member, a

-fulcrum post extending therebetween and having a portionv extending beyond one of said members, and means cooperating With said extending portion and the rear sur tace of one of said members for holding thei'ulorum post in position.

4. In a brake beam, the combination ot a compression member, a ulcrum post having a flange adapted to engage said compression member, said fulcrum post also having a portion extending beyond said compression member, and means eooperating with said projecting 'portion of the fnlcrum post and compression member for frictionally holding said flange and said Vcompression member in irictional engagement for rictionally holding said fulcruin 'post in position.

5. In a brake beam, 'the combination of a compression n'iember, a fulcrum post having 'a flange adapted to engage `the coinpression member' and also having a projeetion extending beyond said compression member, and a wedge cooperating with lsaid extending portion and said compression member for holding Said flange in engagement with said compression member l'or holding said fulcrum post in position.

6. In a brake .beam the combination of a compression member, a it'ulcrum post having a portion adapted to engage said compression member and having an extension projecting` through and beyond said compression member, and a Wedge extending through said extension and cooperating With said compression member for forcing said portion of said fulorum post into engagement With said compression member for holding the fulcrum post in flanges of the compression member, said` ulcrum post having a portion located Within the flanges of the compression member for cooperating therewith to limit the reversible movements of said fulcrum post, said fulcrum post also having 'a projection extending through an opening in the Web of said compression member, anda Wedge passing through an opening in said projecting portion of the fulcrum post for forcing said fulcrumpost' flange into engagement With the compression member flanges for frictionally holding the fulcrum post in adjusted position.

8. In a brake beam, the combination of a compression member, a fulcrum post having a portion extending beyond said compression member, a Wedge engaging the rear surface of said compressionmember and said portion of said fulcrum post for securing the latter in position, `and means for limiting the reversible movements of said fulcrum post.

Signed at Chicago, Illinois, this 18th day of October, 1921.

ARTHUR SPARROW. 

